What Does MVAR Stand For?

MVAR stands for Magnetic Variation

MVAR, or Magnetic Variation, refers to the angle difference between true north and magnetic north at a specific location. This variation is influenced by the Earth's magnetic field and can change over time due to geological and solar activity. MVAR is essential for navigation, as it helps mariners and aviators adjust compass readings to ensure accurate course plotting. Understanding MVAR is critical for effective navigation and operational safety in various fields, including aviation, maritime, and surveying.